Automatic train-stop.



G. A. SCHULER &-P. W. STAERKLE. AUTOMATIC TRAIN STOP. APPLICATION FILED AUG. 26, 1913.

1,1 14,388. Patented Oct. 20, 1914.

\ Ke I OASdmZe l [fisher/Tl Witnesses THE NORRIS PETERS 60.. PHOTO-LITHQ. WASHINGTON. D, C.

I cnAr-mns A. sorrows.

AUTOMATIC TRAIN-STU To all whom "it may 00mm Be it known that we, CHARLES A. SCHU- Lim and PHILIP W. S'rannunn, citizens oi. the United States, residing at New York city, in the county of New York and Shade of New York, have invented certain new and useful "improvements in Automatic Traiirgtops; and we do hereby declare the following to be a full, clear, and exact deas will enable others skilled in the art to which it ap.

scription of the invention, such pertains to make and usethe same.

Our invention relates to devices matically stopping trains should the engineer fail to see the dangersignal and attempt to pass thereby.

An importantobject of our invention is to provide a shoe slidably arranged in .between the rails of a track and operated by the mechanism controlling a semaphore signal,

that is adapted ior'engagement withineans carried by thetrain, which will operate upon the controlling mechanism of thelocomotive and consequentlybringthe train to a stop.

A further object of ourv invention is to provide a device of the above mentioned character which is simple as to construction and arrangement,reliableand efficient in its operation and cheap to manufacture.

The above and additional objects are accomplished by such means as are illustrated in the accompanying drawings, described in the following, specification and then'more particularly pointed out in the claims which are appended hereto and form a part of this application. 1

With reference to the drawings, wherein we haveillustrated the preferred embodiment of our invention as it is reduced to practice,-and throughout the several views of which, similar reference numerals deLs1gnate corresponding parts: Figure 1 is a vertical section illustrating our device as it would appear in assembled operative position, and Fig. 2 is a plan view of the shoe that is slidably arranged between the rails.

Reterringto the drawings by numerals, 1 designates a preferably wooden block that is suitably attached to the a locomotive. This block 1 is-designedto support a slidable tripping mechanism, in such a manner upon theqlocomotive as to cause the tripping mechanism to be in a position for engagement with a ranged between the rails of a track and to be next described. The block 1 is provided I Specification of Letters IEa'tent. 7 Application filed August 26, 1913.

of the block p within the tubular, member 8 for auto- 12 and nut 15 in lower structure of one of the member 6, when the shoe is 1n a pos1- shoe a r I suitably secured to the ties Annr'nrnrr w. s'rannnnn, or new Your; iv. v.

Patented a. 2c, 1914. seriainmsa'zss. I a A with'an annular opening Qthat is disposed angularly with relationtothe vertical. aXis mounted provided at its upper and A tubular member 3 openlng 2 and 1s lower terminals with annular flangesd and 5 that are, countersunk within the block 1. Ashoeengagingmember 6 having a rounded lower terminal 7 is slidably mounted so that it is normally in its posit-ion for engagement with the shoe. A rod- Sis connected with the upper terminal of the member 6 in any suitable manner andextends outwardly to the upper terminal of the tubular member 3. v

The outer terminal of the rod 8 ispivoted as at 9 toa rodlO that is pivotally secured as at 11 to some suitable part of the-locomotive structure. A tubular washer 12 provided ith astraight face 13 and beveled face 1d isloosely mounted upon the rod 8 so that qthebeveled' face 1' 1 isin engagement with,

the upper face of, theannular flange 4. t A nut lo-is threaded upon the rod v8 an engagcs the straight face 13 of the washer 12 and it will thus be seenthat the washer scribedserve to efliciently dispose andsupport the member 6. v A helical spring 16 is mountedupon the rod 8, engages the under face of the nut 15 and the upper face of the memberffi. This spring 16 serves to return the member (itoits normaloperative position as it will be compressed upon the 1113- ward movement of the member 6 and'upon the completion of the upward movement of the member 6 the spring return the member 6 toits normal position. A cord or suitable flexible element 17 is secured as at 1,8 to one of the terminals of the inen'iber 10, rides upon a pulley 19 and is controlling mechanism of the locomotive The pulley 19 is suitably mounted to any convenient part of the locomotive frame,

scribed mechanism consists of a rectangular block th'atis. designated as an entirety by the numeral 20. This shoe 20 is provided with a beveled face 21 that is adapted for 'einent with the rounded terminal 7 being arranged such as de- 16 will expand and The shoe fo-rfoperatingthe above de-' tangular plate 23 having certain of its edges 2st and 25 bent upwardly and inwardly so as to receive flanges 26 and 27 that are formed upon certain of the edges of the block 1'20, whereby the block is slidably mounted upon the plate 23.

A bell-crank 28 is suitably mounted upon a supporting block 29 that is disposed upon one'side of the rails. pThis bell crank 28 is connected at its free terminals with a rod 30 that is suitably'connected tothe shoe 20, and to a rod 31 that is suitably connected to a semaphore mechanism so that when the semaphore arm is disposed in a danger or stop position the shoe 20 will be in such a position that it will cause the member 6 to engage the beveled face thereof and operate to stop the train. It will thus be seen that when the shoe 20 is in a posit-ion to cause the train to stop, in its stop position and engagement of the rounded terminal 7 of the member 6 with the beveled face 21 of the shoe 20 will cause the member 6 to be pushed upwardly and exert a pull upon the cord l7,which, as before stated is suitably connected'to' the controlling mechanism of the locomotive. The action such as described upon the cord 17 will serve to bring the locomotive to a stop. The member-6 is pushed upwardly against the action of the helical spring 16 which serves to return the member (Sto its normal emphasize the fact that operative position upon the completion of the upward movement thereof.

It is apparent with reference to the drawings and foregoing description that should the engineer attempt'to run by the stop or danger signal that the train will be brought to an immediate stop by the operation of the mechanism hereinbefore described.

In practice, we have found thatthe form of our invention, illustrated in the drawings and referred to inthe above description, as the preferred embodiment, is the most efficient and practical; yet realizing that the conditions concurrentwith the adoption of our device'will necessarily vary, we desire to various minor. changes in details of-construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of our invention, as defined in the appended claims.

What is claimed is 1. In a device'of the character described the combination with'a support adapted to be attached to alocomotive, ofa shoe engaging member slidably mounted Within said support and disposed angularly with relation to the vertical axis thereof, means for operating said shoe engaging member that the semaphore arm is carried between the rails, said shoe engaging nected with the upper terminal of said shoe en aging member and disposed above said support, a pivoted lever connected at one terminal with said rod, a flexible element connected with said pivoted lever, said flexible element adapted to be connected with the controlling mechanism of the locomotive, means for pushing said shoe engaging member upwardly carried between the rails, a nut carried on said first named rod in spaced relation to the upper terminal of said shoe engaging member, and a spring mounted upon said rod and engaging the upper terminal of said shoe engaging member and the nut.

3. In a device of the character described the combination with a support, adapted to be secured to a locomotive and having an opening extending therethrough at an angle to the vertical, of a tubular member mounted within said opening, said tubular member provided with annular flanges at its terminals, a shoe engaging member mounted within said tubular member, a rod connected with the upper terminal of said shoe engaging member and extending upwardly from said support, said rod operatively connected with the controlling mechanism of the locomotive, a washer having a straight face and a beveled face mounted upon said rod so that its beveled face engages the flange on the upper terminal of said tubular member, a spring mounted upon said rod, a nut threaded upon said rod engaging the straight face of said washer and the upper terminal of said sprin and means for operating said shoe engaging member carried between the rails of the track.

In testimony whereof we afiix our signatures in presenceof two witnesses.

CHARLES A. SOHULER. PHILIP W. STAERKLE. Witnesses v 5 PEET, MARGARET Gon'rz.

Copies of this patent may be obtained for fivecents each, by addressing the Commissioner of Patents,

Washington, I). G. 

